LOUDON, N.H. 
The forecast calls for rain at New Hampshire, potentially soaking fans for NASCAR's second consecutive Chase race, and putting the threat of a Monday finish in play.

Without lights at the 1.058-mile track, the rush could be for jet fuel dryers to wring out the asphalt and make it safe for drivers to complete at least half of Sunday's race before the sun goes down.

The possible weather interruption raises more questions about the status of NASCAR's air titan, a state-of-the art system designed to blow the water out of every pesky weeper and reduce track drying time, perhaps up to 80 percent.

It's stuck in Concord, N.C. Tracks have been slow to embrace the Air Titan, putting the machine on a Sprint Cup sabbatical since May at Talladega.